一方向凝固Al<SUB>2</SUB>O<SUB>3</SUB>/YAG共晶コンポジットの高温腐食挙動

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  • High Temperature Corrosion Behavior of a Unidirectionally Solidified Al2O3/YAG Eutectic Composite.

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Hot corrosion behavior of an Al2O3/YAG eutectic composite in molten V2O5 at 800°C and 1500°C has been investigated. This composite showed a more stable behavior than polycrystals due to its peculiar microstructure. The surface reaction product of YVO4 also prevented the penetration of molten V2O5. The higher testing temperature resulted in less corrosion, due to V2O5 vaporization.

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